Question

on increasing the diameter of a circle by 40% it's area will increased by ?

Answer 1



If radius is 1 unit and increased by40%, it will become 1.4 units and on squaring it becomes 1.96 (Area of acircle = pi*r*r). Thus, the area increases by 96%. Originally Answered: If the diameter of a circle is increasedby 40%, then by how much is its area increased?